package org.zhangyp.n01jdkapi.n01oop.runtimepolymorphism;

/**
 * 乐器类
 *
 * @author zhangyp
 * @date 2023/6/8 9:15
 */
public class Instrument {
    public void play() {
        System.out.println("Instrument is playing...");
    }
}

